About this item 

• SOCKET WRENCH SET: This 3-pack impact socket adapter joint set is made with heat-treated black chromium-molybdenum steel for maximum durability. It includes one 1/4-inch, 1/2-inch, and 3/8-inch extension socket that fits as a drill socket adapter. 
• QUALITY UNIVERSAL SOCKET: Our socket adapter set has a protective high-quality black phosphate coating to provide long-term protection from dirt, grime, and other corrosion. This swivel socket set works well for lifetime impact and hand tools. 
• ANGLE SOCKET ADAPTER: Each socket in this 3 pack has a full 360-degree bendable joint that lets you access hard-to-reach angles. The U-joint mechanism has a rotatable design that gives you more coverage with your drilling jobs. 
• EASY-ATTACHMENT DESIGN: To attach the socket drill extension, snap the end of the adapter onto your drill. Each extender has a spring-loaded ball at the attachment point that locks the socket securely into place to prevent slipping and dropping. 
• VISIBLE SIZES: The 1/4-inch, 3/8-inch, and 1/2-inch socket adapters have their sizes laser-etched into the sides. These easy-to-read and large stamps make it simple and quick to choose which size socket you need for your drill.